Analysis of a Soft Switching High Voltage Gain DC/DC Boost Converter for PV Systems

Year 2018, Volume: 4 Issue: 2, 119 - 123, 27.06.2018

Sarah Al-hajm Mehmet Ucar

Abstract

This paper presents an analysis of a non-isolated soft switching high voltage
gain DC/DC boost converter by using a coupling
inductor, voltage quadrupler and active clamp circuit for Photovoltaic (PV) systems. The main advantage of this
converter, coupled inductor with voltage quadrupler circuit is used to decrease
voltage stress in semiconductor switches and providing high voltage gain. Therefore, low
voltage valued and low on-resistance MOSFETs can be used to decrease
on-state losses. The reverse recovery and high frequency turn off losses is
reduced for achieving Zero-Current Switching (ZCS) in all diodes. Voltage spike
caused by leakage inductance of the coupled inductor is minimized by means of
the active clamp circuit. Thus, Zero-Voltage Switching (ZVS) turn on of all
MOSFET switches are achieved. The Perturb and Observe
(P&O) method is utilized in this study to obtain maximum power from the PV
system. In order to show the effectiveness of the converter,
PSIM simulations are realized under various irradiance cases. The conversion
efficiency is obtained about 95.97% at full load from the simulation results.

Keywords

DC/DC converter, high voltage gain, coupling inductor, voltage quadrupler, ZCS, ZVS, PV system

References

• J. M. Guerrero, F. Blaabjerg, T. Zhelev, K. Hemmes, E. Monmasson, S. Jemei, M. P. Comech, R. Granadino, J. I. Frau, “Distributed generation: toward a new energy paradigm”, IEEE Industrial Electronics Magazine, vol. 4, no. 1, pp. 52-64, March 2010.
• S. Hema, A. Arulmathy, V. Saranya and S. Yugapriya, “High voltage gain soft switching converter for solar energy AC and DC applications”, International Conference on Power and Embedded Drive Control (ICPEDC), Chennai, 2017, pp. 326-332.
• E. Mamarelis, G. Petrone and G. Spagnuolo, “Design of a sliding-mode-controlled SEPIC for PV MPPT applications”, IEEE Transactions on Industrial Electronics, vol. 61, no. 7, pp. 3387-3398, July 2014.
• C. W. Tan, T. C. Green and C. A. Hernandez-Aramburo, “Analysis of perturb and observe maximum power point tracking algorithm for photovoltaic applications”, IEEE 2nd International Power and Energy Conference, Johor Bahru, 2008, pp. 237-242.
• F. Boico and B. Lehman, “Study of different implementation approaches for a maximum power point tracker”, IEEE Workshops on Computers in Power Electronics, Troy, NY, 2006, pp. 15-21.
• B. Liu, S. Duan, F. Liu and P. Xu, “Analysis and improvement of maximum power point tracking algorithm based on incremental conductance method for photovoltaic array”, 7th International Conference on Power Electronics and Drive Systems, Bangkok, 2007, pp. 637-641.
• D. Sera, L. Mathe, T. Kerekes, S. V. Spataru and R. Teodorescu, “On the perturb-and-observe and incremental conductance MPPT methods for PV systems”, IEEE Journal of Photovoltaics, vol. 3, no. 3, pp. 1070-1078, July 2013.
• M. Das and V. Agarwal, “A novel, high efficiency, high gain, front end DC-DC converter for low input voltage solar photovoltaic applications”, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, Montreal, QC, 2012, pp. 5744-5749.
• S. Sathyan, H. M. Suryawanshi, M. S. Ballal and A. B. Shitole, “Soft-switching DC–DC Converter for distributed energy sources with high step-up voltage capability”, IEEE Transactions on Industrial Electronics, vol. 62, no. 11, pp. 7039-7050, Nov. 2015.
• S. Sathyan, H. M. Suryawanshi, A. B. Shitole and G. G. Talapur, “Soft switched high voltage gain boost integrated flyback converter”, IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Trivandrum, 2016, pp. 1-6.
• S. Sathyan, H. M. Suryawanshi, B. Singh, C. Chakraborty, V. Verma and M. S. Ballal, “ZVS–ZCS high voltage gain integrated boost converter for DC microgrid”, IEEE Transactions on Industrial Electronics, vol. 63, no. 11, pp. 6898-6908, Nov. 2016.